Christian N. L. Olivers

Repetition Dissociates Pointer and Content-based Representations in Visual Working Memory: Contrasting the CDA with Multivariate Shape Decoding

The paper investigates how repetition affects visual working memory by comparing neural markers of object storage with multivariate decoding of memory content, finding that repetition reduces a specific ERP but maintains shape decoding.

Spatial generalization of peripherally encoded memories emerges before selection for report

The paper investigates the time course of spatial generalization in visual working memory, finding early stages occur at sensory levels before report selection.

Effects of context changes on memory reactivation

This study investigates how context changes affect memory reactivation, finding that irrelevant context changes trigger reactivation of long-term memories in working memory.

Comparing Neural Correlates of Memory Encoding and Maintenance for Foveal and Peripheral Stimuli

This study compares neural correlates of memory encoding and maintenance for foveal and peripheral visual stimuli using EEG, finding dissociation in sensory and maintenance signals.

A matter of availability: Neural representations of task-relevant stimulus features are sharper when stimuli are memorized rather than perceived.

The paper shows that memorized stimuli have stronger neural representations than perceived ones in a change-detection task, contradicting subjective experience.

Memory for stimulus durations is not bound to spatial information

The paper investigates whether temporal information in working memory is bound to spatial information, finding that while spatial information is involved during perception, it is no longer related during comparison.

Neural repetition suppression modulates time perception: evidence from electrophysiology and pupillometry

The paper shows that changes in sensory responses, not arousal, affect time perception using electrophysiology and pupillometry.

High-pass filtering artifacts in multivariate classification of neural time series data

The paper shows that high-pass filtering and standard robust detrending introduce artifacts in multivariate pattern classification of neural time series, and proposes trial-masked robust detrending as an alternative that avoids these issues.

Flexible working memory through selective gating and attentional tagging

This paper introduces WorkMATe, a neural network model that learns to control working memory through reinforcement learning, solving both simple and complex tasks with flexible memory management.

Unattended but actively stored: EEG dynamics reveal a dissociation between selective attention and storage in working memory

The paper investigates the dissociation between selective attention and storage in working memory using EEG, showing they are distinct processes with different dynamics based on the importance of WM representations.

Frontal Cortex Differentiates Between Free and Imposed Target Selection in Multiple-TargetSearch

The paper investigates how proactive and reactive cognitive control mechanisms differ in multiple-target search using fMRI and eye tracking, finding distinct neural activity patterns in frontal and parietal regions based on target selection freedom.

Humans can efficiently look for but not select multiple visual objects

This study investigates whether humans can prioritize multiple visual objects simultaneously, finding that preparation for selecting two objects incurs minimal cost, but actual selection is costly due to neural competition.

Beta and theta oscillations differentially support free versus forced control over multiple-target search

The paper investigates how proactive and reactive control mechanisms differ in multiple-target visual search using EEG and eye tracking, revealing distinct neural signatures in beta and theta oscillations.

Current and future goals are represented in opposite patterns in object-selective cortex

The paper investigates how current and future goals are represented in object-selective cortex using fMRI, finding opposite patterns for prospective and current memory representations.

Working memory implements distinct maintenance mechanisms depending on task goals

The paper investigates how neural mechanisms for working memory differ based on task goals, finding distinct roles for oscillatory alpha-band power and evoked EEG activity in continuous recall and visual search tasks.

Multivariate EEG analyses support high-resolution tracking of feature-based attentional selection

This paper shows that multivariate EEG analysis can track feature-based attentional selection with high spatial and temporal precision, outperforming standard N2pc methods.

Perceptual integration without conscious access

The paper investigates whether conscious access is required for perceptual integration by using the attentional blink and EEG decoding.